The invention discloses a method for reducing
human body fat, which comprises the following steps that: first, pre-treatment is carried out on the
skin, then, the
skin is heated for five minutes or more than five minutes at 37 to 60 DEG C, the heating is stopped for about one minute, then, the
skin is instantaneously frozen so that the fat in the skin is frozen for 40 minutes or more than 40 minutes at -10 DEG C to 5 DEG C, and fat cells in the body are dead and are discharged out of the body through
metabolism. The invention also discloses a weight reducing instrument adopting the method, which comprises a
host machine and a work head connected with the
host machine, wherein the work head is provided with a cavity used for sucking the skin, the cavity is connected with a negative pressure pump arranged in the
host machine through a pipeline, at least one side of the cavity is provided with a
semiconductor freezing sheet work region, the
semiconductor freezing sheet work region has the heating and freezing functions according to different signals, and the back part of the
semiconductor freezing sheet in the work region is provided with a heat radiator and is connected with a heat
radiation water tank arranged in the host
machine. The method for reducing the
human body fat and the weight reducing instrument adopting the method have the advantages that through the heating on the skin, the blood vessels, the
muscle and the fat are completely separated, the damage of tissue thanatosis and the like caused by blood solidification in the freezing
fat reduction process is avoided, and the method belongs to a safe
fat reduction and weight reducing method.